package cn.luckywh.diy;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

/**
 * @author W.
 * @date 2020/12/9 15:35
 */
@Aspect
public class AnnotationPointcut {

    //前置增强
    @Before("execution(* cn.luckywh.service.UserServiceImpl.*(..))")
    public void before(){
        System.out.println("===========执行前===========");
    }

    //后置增强
    @After("execution(* cn.luckywh.service.UserServiceImpl.*(..))")
    public void after(){
        System.out.println("===========执行后===========");
    }

    //环绕增强
    @Around("execution(* cn.luckywh.service.UserServiceImpl.*(..))")
    public void around(ProceedingJoinPoint jp) throws Throwable {
        System.out.println("环绕前");
        System.out.println("签名:"+jp.getSignature());
        //执行目标方法proceed
        Object proceed = jp.proceed();
        System.out.println("环绕后");
        System.out.println(proceed);
    }

}
